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Banaszak M, Dobrzyńska M, Kawka A, Górna I, Woźniak D, Przysławski J, Drzymała-Czyż S. Role of Omega-3 fatty acids eicosapentaenoic (EPA) and docosahexaenoic (DHA) as modulatory and anti-inflammatory agents in noncommunicable diet-related diseases - Reports from the last 10 years. Clin Nutr ESPEN 2024; 63:240-258. [PMID: 38980796 DOI: 10.1016/j.clnesp.2024.06.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 06/11/2024] [Accepted: 06/27/2024] [Indexed: 07/11/2024]
Abstract
BACKGROUND & AIMS Fatty acids are a fundamental component of the human diet, particularly polyunsaturated fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). The importance of omega-3 fatty acids has been studied in the context of many diseases due to their pleiotropic effects, focusing on the anti-inflammatory effects of EPA and DHA. Currently, the results of these acids in noncommunicable diseases are being increasingly assessed in a broader context than just inflammation. However, the mechanisms underlying the modulatory and anti-inflammatory effects of omega-3 fatty acids remain the subject of intensive research. Therefore, we reviewed the literature covering articles from the last decade to assess not only the anti-inflammatory but, above all, the modulatory effect of EPA and DHA acids on noncommunicable diet-related diseases. METHODS The PubMed, Web of Science and Scopus databases were searched for studies regarding the effects of omega-3 fatty acids on diet-related disorders from the last 10 years. RESULTS The available research shows that EPA and DHA supplementation has a beneficial impact on regulating triglycerides, total cholesterol, insulin resistance, blood pressure, liver enzymes, inflammatory markers and oxidative stress. Additionally, there is evidence of their potential benefits in terms of mitochondrial function, regulation of plasma lipoproteins, and reduction of the risk of sudden cardiovascular events associated with atherosclerotic plaque rupture. CONCLUSIONS Omega-3 polyunsaturated fatty acids (EPA, DHA) have many beneficial effects among patients with diet-related disorders. More well-designed randomised controlled trials are needed to fully determine the usefulness of EPA and DHA in treating and preventing noncommunicable diet-related diseases.
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Affiliation(s)
- Michalina Banaszak
- Poznan University of Medical Sciences, Department of Bromatology, Rokietnicka 3, Poznan, Poland; Poznan University of Medical Sciences Doctoral School, Bukowska 70, Poznan, Poland.
| | - Małgorzata Dobrzyńska
- Poznan University of Medical Sciences, Department of Bromatology, Rokietnicka 3, Poznan, Poland
| | - Anna Kawka
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznan, Poland
| | - Ilona Górna
- Poznan University of Medical Sciences, Department of Bromatology, Rokietnicka 3, Poznan, Poland
| | - Dagmara Woźniak
- Poznan University of Medical Sciences, Department of Bromatology, Rokietnicka 3, Poznan, Poland
| | - Juliusz Przysławski
- Poznan University of Medical Sciences, Department of Bromatology, Rokietnicka 3, Poznan, Poland
| | - Sławomira Drzymała-Czyż
- Poznan University of Medical Sciences, Department of Bromatology, Rokietnicka 3, Poznan, Poland
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Sandoval C, Nahuelqueo K, Mella L, Recabarren B, Souza-Mello V, Farías J. Role of long-chain polyunsaturated fatty acids, eicosapentaenoic and docosahexaenoic, in the regulation of gene expression during the development of obesity: a systematic review. Front Nutr 2023; 10:1288804. [PMID: 38024342 PMCID: PMC10665854 DOI: 10.3389/fnut.2023.1288804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction There exists a correlation between obesity and the consumption of an excessive amount of calories, with a particular association between the intake of saturated and trans fats and an elevated body mass index. Omega-3 fatty acids, specifically eicosapentaenoic and docosahexaenoic acids, have been identified as potential preventive nutrients against the cardiometabolic hazards that are commonly associated with obesity. The objective of this comprehensive review was to elucidate the involvement of long-chain polyunsaturated fatty acids, specifically eicosapentaenoic acid and docosahexaenoic acid, in the modulation of gene expression during the progression of obesity. Methods The present analysis focused on primary studies that investigated the association between long-chain polyunsaturated fatty acids, gene expression, and obesity in individuals aged 18 to 65 years. Furthermore, a comprehensive search was conducted on many databases until August 2023 to identify English-language scholarly articles utilizing MeSH terms and textual content pertaining to long-chain polyunsaturated fatty acids, gene expression, obesity, and omega-3. The protocol has been registered on PROSPERO under the registration number CRD42022298395. A comprehensive analysis was conducted on a total of nine primary research articles. All research collected and presented quantitative data. Results and Discussion The findings of our study indicate that the incorporation of eicosapentaenoic and docosahexaenoic acid may have potential advantages and efficacy in addressing noncommunicable diseases, including obesity. This can be attributed to their anti-inflammatory properties and their ability to regulate genes associated with obesity, such as PPARγ and those within the ALOX family. Systematic Review Registration https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022298395, CRD42022298395.
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Affiliation(s)
- Cristian Sandoval
- Escuela de Tecnología Médica, Facultad de Salud, Universidad Santo Tomás, Osorno, Chile
- Departamento de Ingeniería Química, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
- Departamento de Ciencias Preclínicas, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile
| | - Karen Nahuelqueo
- Carrera de Tecnología Médica, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile
| | - Luciana Mella
- Carrera de Tecnología Médica, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile
| | - Blanca Recabarren
- Carrera de Tecnología Médica, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile
| | - Vanessa Souza-Mello
- Laboratorio de Morfometría, Metabolismo y Enfermedades Cardiovasculares, Centro Biomédico, Instituto de Biología, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jorge Farías
- Departamento de Ingeniería Química, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
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Wu SK, Chen WJ, Chang JPC, Guu TW, Hsin MC, Huang CK, Mischoulon D, Capuron L, Su KP. Personalized Medicine of Omega-3 Fatty Acids in Depression Treatment in Obese and Metabolically Dysregulated Patients. J Pers Med 2023; 13:1003. [PMID: 37373992 DOI: 10.3390/jpm13061003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/07/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
The co-occurrence of depression and obesity has become a significant public health concern worldwide. Recent studies have shown that metabolic dysfunction, which is commonly observed in obese individuals and is characterized by inflammation, insulin resistance, leptin resistance, and hypertension, is a critical risk factor for depression. This dysfunction may induce structural and functional changes in the brain, ultimately contributing to depression's development. Given that obesity and depression mutually increase each other's risk of development by 50-60%, there is a need for effective interventions that address both conditions. The comorbidity of depression with obesity and metabolic dysregulation is thought to be related to chronic low-grade inflammation, characterized by increased circulating levels of pro-inflammatory cytokines and C-reactive protein (CRP). As pharmacotherapy fails in at least 30-40% of cases to adequately treat major depressive disorder, a nutritional approach is emerging as a promising alternative. Omega-3 polyunsaturated fatty acids (n-3 PUFAs) are a promising dietary intervention that can reduce inflammatory biomarkers, particularly in patients with high levels of inflammation, including pregnant women with gestational diabetes, patients with type 2 diabetes mellitus, and overweight individuals with major depressive disorder. Further efforts directed at implementing these strategies in clinical practice could contribute to improved outcomes in patients with depression, comorbid obesity, and/or metabolic dysregulation.
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Grants
- MOST 109-2320-B-038-057-MY3, 110-2321-B-006-004, 110-2811-B-039-507, 110-2320-B-039-048-MY2,110-2320-B-039-047-MY3, 110-2813-C-039-327-B, 110-2314-B-039-029-MY3, 111-2321-B-006-008, and NSTC 111-2314-B-039-041-MY3 Ministry of Science and Technology, Taiwan
- ANHRF 109-31, 109-40, 110-13, 110-26, 110-44, 110-45, 111-27, 111-28, 111-47, 111-48, and 111-52 An-Nan Hospital, China Medical University, Tainan, Taiwan
- CMRC-CMA-2 Ministry of Education (MOE), Taiwan
- CMU 110-AWARD-02, 110-N-17, 1110-SR-73 China Medical University, Taichung, Taiwan
- DMR-106-101, 106-227, 109-102, 109-244, 110-124, 111-245, 112-097, 112-086, 112-109, 112-232 and DMR-HHC-109-11, HHC-109-12, HHC-110-10, and HHC-111-8 China Medical University Hospital, Taichung, Taiwan
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Affiliation(s)
- Suet-Kei Wu
- Graduate Institute of Nutrition, China Medical University, Taichung 404, Taiwan
- Mind-Body Interface Research Center (MBI-Lab), China Medical University Hospital, Taichung 404, Taiwan
| | - Wei-Jen Chen
- An-Nan Hospital, China Medical University, Tainan 709, Taiwan
| | - Jane Pei-Chen Chang
- Mind-Body Interface Research Center (MBI-Lab), China Medical University Hospital, Taichung 404, Taiwan
- Department of Psychiatry, China Medical University Hospital, Taichung 404, Taiwan
- College of Medicine, China Medical University, Taichung 404, Taiwan
| | - Ta-Wei Guu
- Mind-Body Interface Research Center (MBI-Lab), China Medical University Hospital, Taichung 404, Taiwan
- Division of Psychiatry, Department of Internal Medicine, China Medical University Beigang Hospital, Yunlin 651, Taiwan
| | - Ming-Che Hsin
- Body Science & Metabolic Disorders International Medical Centre (BMIMC), China Medical University & Hospital, Taichung 404, Taiwan
| | - Chih-Kun Huang
- Body Science & Metabolic Disorders International Medical Centre (BMIMC), China Medical University & Hospital, Taichung 404, Taiwan
| | - David Mischoulon
- Depression Clinical and Research Program, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Lucile Capuron
- NutriNeuro, University of Bordeaux, INRAE, Bordeaux INP, UMR 1286, F-33076 Bordeaux, France
| | - Kuan-Pin Su
- Mind-Body Interface Research Center (MBI-Lab), China Medical University Hospital, Taichung 404, Taiwan
- An-Nan Hospital, China Medical University, Tainan 709, Taiwan
- Department of Psychiatry, China Medical University Hospital, Taichung 404, Taiwan
- College of Medicine, China Medical University, Taichung 404, Taiwan
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Bakker N, Hickey M, Shams R, Rivera CF, Vlahos J, Cense HA, Demirkiran A, Ramkhelawon B, Houdijk AP. Oral ω-3 PUFA supplementation modulates inflammation in adipose tissue depots in morbidly obese women: A randomized trial. Nutrition 2023; 111:112055. [PMID: 37182400 DOI: 10.1016/j.nut.2023.112055] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 03/16/2023] [Accepted: 04/04/2023] [Indexed: 05/16/2023]
Abstract
OBJECTIVES Obesity is characterized by local and systemic low-grade inflammatory responses. Adipose tissue macrophages (ATM) play decisive roles in inflammation, insulin signaling, and various metabolic dysfunctions. Diets enriched with ω-3 polyunsaturated fatty acids (PUFAs) have been shown to improve health and mitigate pathologic conditions. However, the effects of ω-3 PUFA on adipose tissue inflammation, ATM number, and phenotype are poorly defined in human obesity. The aim of this study was to examine differences in expression of metabolic-inflammatory markers in omental, mesenteric, and subcutaneous fat depots of obese women supplemented with ω-3 PUFAs for 4 wk compared with a low-calorie diet before bariatric surgery. METHODS In a randomized controlled trial, inflammatory markers in the abdominal adipose tissue and the systemic response in obese women were studied. Patients were treated with a 2-wk low-calorie diet (LCD) or a 4-wk ω-3 PUFA-enriched diet (920 mg eicosapentaenoic acid, 760 mg docosahexaenoic acid daily) before laparoscopic bypass surgery. Omental, mesenteric, and subcutaneous adipose tissue biopsies were collected during surgery and analyzed for quantity and phenotype of ATMs, and profiled for adipokines, cytokines, and signal transduction molecules. RESULTS The chronic inflammatory state characterized by ATM markers was mostly improved by ω-3 PUFAs in visceral adipose tissue. We observed a decreased expression of CD45, CCL2, and CD68, indicating a lower inflammatory state. In patients with type 2 diabetes, ω-3 PUFAs lowered the expression of Netrin-1. CONCLUSIONS Compared with an LCD, a diet enriched with ω-3 PUFAs influences the inflammatory state in different adipose tissue depots, by affecting markers of adipose tissue inflammation, macrophage phenotype, and retention. However, this was not reflected in clinical parameters such as insulin resistance and inflammatory cytokines. Subcutaneous adipose tissue and visceral adipose tissue have different responses to an LCD or a ω-3 PUFA-enriched diet. The presence of diabetes modifies the expression of inflammatory markers.
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Affiliation(s)
- Nathalie Bakker
- Northwest Clinics, Department of Surgery, Alkmaar, The Netherlands; Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands; Red Cross Hospital, Department of Surgery, Beverwijk, The Netherlands
| | - Meave Hickey
- Division of Vascular and Endovascular Surgery, Department of Surgery and Cell Biology, New York University Langone Medical Center, New York, New York, United States
| | - Rebecca Shams
- Division of Vascular and Endovascular Surgery, Department of Surgery and Cell Biology, New York University Langone Medical Center, New York, New York, United States
| | - Cristobal F Rivera
- Division of Vascular and Endovascular Surgery, Department of Surgery and Cell Biology, New York University Langone Medical Center, New York, New York, United States
| | - John Vlahos
- Division of Vascular and Endovascular Surgery, Department of Surgery and Cell Biology, New York University Langone Medical Center, New York, New York, United States
| | - Huib A Cense
- Red Cross Hospital, Department of Surgery, Beverwijk, The Netherlands
| | - Ahmet Demirkiran
- Red Cross Hospital, Department of Surgery, Beverwijk, The Netherlands
| | - Bhama Ramkhelawon
- Division of Vascular and Endovascular Surgery, Department of Surgery and Cell Biology, New York University Langone Medical Center, New York, New York, United States
| | - Alexander Pj Houdijk
- Northwest Clinics, Department of Surgery, Alkmaar, The Netherlands; Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands; Red Cross Hospital, Department of Surgery, Beverwijk, The Netherlands.
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Shaikh SR, Virk R, Van Dyke TE. Potential Mechanisms by Which Hydroxyeicosapentaenoic Acids Regulate Glucose Homeostasis in Obesity. Adv Nutr 2022; 13:2316-2328. [PMID: 35709423 PMCID: PMC9776734 DOI: 10.1093/advances/nmac073] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/16/2022] [Accepted: 06/13/2022] [Indexed: 01/29/2023] Open
Abstract
Dysregulation of glucose metabolism in response to diet-induced obesity contributes toward numerous complications, such as insulin resistance and hepatic steatosis. Therefore, there is a need to develop effective strategies to improve glucose homeostasis. In this review, we first discuss emerging evidence from epidemiological studies and rodent experiments that increased consumption of EPA (either as oily fish, or dietary/pharmacological supplements) may have a role in preventing impairments in insulin and glucose homeostasis. We then review the current evidence on how EPA-derived metabolites known as hydroxyeicosapentaenoic acids (HEPEs) may be a major mode of action by which EPA exerts its beneficial effects on glucose and lipid metabolism. Notably, cell culture and rodent studies show that HEPEs prevent fat accumulation in metabolic tissues through peroxisome proliferator activated receptor (PPAR)-mediated mechanisms. In addition, activation of the resolvin E1 pathway, either by administration of EPA in the diet or via intraperitoneal administration of resolvin E1, improves hyperglycemia, hyperinsulinemia, and liver steatosis through multiple mechanisms. These mechanisms include shifting immune cell phenotypes toward resolution of inflammation and preventing dysbiosis of the gut microbiome. Finally, we present the next steps for this line of research that will drive future precision randomized clinical trials with EPA and its downstream metabolites. These include dissecting the variables that drive heterogeneity in the response to EPA, such as the baseline microbiome profile and fatty acid status, circadian rhythm, genetic variation, sex, and age. In addition, there is a critical need to further investigate mechanisms of action for HEPEs and to establish the concentration of HEPEs in differing tissues, particularly in response to consumption of oily fish and EPA-enriched supplements.
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Affiliation(s)
- Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School
of Medicine, The University of North Carolina at Chapel Hill, Chapel
Hill, NC, USA
| | - Rafia Virk
- Department of Nutrition, Gillings School of Global Public Health and School
of Medicine, The University of North Carolina at Chapel Hill, Chapel
Hill, NC, USA
| | - Thomas E Van Dyke
- Center for Clinical and Translational Research, The Forsyth
Institute, Cambridge, MA, USA
- Department of Oral Medicine, Infection, and Immunity, Harvard School of
Dental Medicine, Harvard Medical School, Boston, MA, USA
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Dogay Us G, Mushtaq S. N-3 fatty acid supplementation mediates lipid profile, including small dense LDL, when combined with statins: a randomized double blind placebo controlled trial. Lipids Health Dis 2022; 21:84. [PMID: 36050695 PMCID: PMC9434850 DOI: 10.1186/s12944-022-01686-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/02/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Epidemiological and clinical evidence suggests that high-dose intake of omega 3 fatty acids (n-3 FA) have a favorable role in altering serum triglycerides (TG) and non-high density lipoprotein cholesterol (non-HDL-C) when combined with statins in hyperlipidemic patients. Their efficacy in altering low-density lipoprotein cholesterol (LDL-C) particle size is yet to be established. AIM This study evaluated the effects of supplementing 4 g/day Eicosapentaenoic acid (EPA) and Docosahexaenoic acid (DHA) on serum blood lipids, including small, dense LDL-C particle concentration, in hyperlipidemic patients receiving stable statin therapy. METHODS In this randomized, placebo-controlled, double-blind parallel group study, 44 patients on statin therapy for > 8 weeks with non-HDL-C concentrations above 130 mg/dL were randomized into two groups. For 8 weeks, together with their prescribed statin, the intervention group received 4 g/day EPA + DHA (3000 mg EPA + 1000 mg DHA in ethyl ester form) and the placebo group received 4 g/day olive oil (OO). Measurements of serum non-HDL-C, TG, total cholesterol (TC), high density lipoprotein cholesterol (HDL-C), LDL-C (including large - LDL I; intermediate - LDL II; and small - LDL III subclasses), very-low-density lipoprotein cholesterol (VLDL-C) concentration, were taken at baseline and post-intervention. Dietary intake was assessed with a weighed intake, 3-day food diary at week 4. Primary outcome measures were percent change in LDL III, non-HDL-C and LDL particle number. RESULTS At the end of treatment, the median percent change in serum LDL III concentration was significantly greater in the n-3 FA group plus atorvastatin compared to placebo (- 67.5% vs - 0%, respectively; P < 0.001). Supplementation with n-3 FA plus atorvastatin led to significant reductions in serum non-HDL-C (- 9.5% vs 4.7%, P < 0.01), TG (- 21.5% vs 6.2%, P < 0.001) and VLDL-C (- 36.9% vs 4.0%, P < 0.001) and TC (- 6.6% vs 2.1%, P < 0.001). Between the groups, no significant difference in percent change in the serum concentration of LDL-C, HDL-C, as well as in the LDL I and LDL II subclasses was observed. CONCLUSION In this group of hyperlipidemic patients on a stable statin prescription, OM3 plus atorvastatin improved small dense LDL concentrations, non-HDL-C, VLDL-C and TG to a greater extent than atorvastatin alone. Further studies are warranted in this area. TRIAL REGISTRATION This trial was retrospectively registered on 23 May 2019 on ClinicalTrials.gov with ID: NCT03961763.
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Affiliation(s)
- Gediz Dogay Us
- University of Chester, Parkgate Road, Chester, CH1 4BJ, UK. .,NUTRIM School of Nutrition and Translational Research In Metabolism, Maastricht University, Maastricht, Netherlands.
| | - Sohail Mushtaq
- University of Chester, Parkgate Road, Chester, CH1 4BJ, UK.,University of Chester, Faculty of Medicine, Dentistry and Life Sciences, Parkgate Road, Chester, CH1 4BJ, UK
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Kunz HE, Michie KL, Gries KJ, Zhang X, Ryan ZC, Lanza IR. A Randomized Trial of the Effects of Dietary n3-PUFAs on Skeletal Muscle Function and Acute Exercise Response in Healthy Older Adults. Nutrients 2022; 14:nu14173537. [PMID: 36079794 PMCID: PMC9459748 DOI: 10.3390/nu14173537] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 12/16/2022] Open
Abstract
Skeletal muscle is critical for maintaining mobility, independence, and metabolic health in older adults. However, a common feature of aging is the progressive loss of skeletal muscle mass and function, which is often accompanied by mitochondrial impairments, oxidative stress, and insulin resistance. Exercise improves muscle strength, mitochondrial health, and cardiorespiratory fitness, but older adults often exhibit attenuated anabolic responses to acute exercise. Chronic inflammation associated with aging may contribute to this "anabolic resistance" and therapeutic interventions that target inflammation may improve exercise responsiveness. To this end, we conducted a randomized controlled trial to determine the effect of 6 months of dietary omega-3 polyunsaturated fatty acids (n3-PUFA) supplementation on skeletal muscle function (mass, strength), mitochondrial physiology (respiration, ATP production, ROS generation), and acute exercise responsiveness at the level of the muscle (fractional synthesis rate) and the whole-body (amino acid kinetics) in healthy older adults. When compared with a corn oil placebo (n = 33; 71.5 ± 4.8 years), older adults treated with 4 g/day n3-PUFA (n = 30; 71.4 ± 4.5 years) exhibited modest but significant increases in muscle strength (3.1 ± 14.7% increase in placebo vs. 7.5 ± 14.1% increase in n3-PUFA; p = 0.039). These improvements in muscle strength with n3-PUFA supplementation occurred in the absence of any effects on mitochondrial function and a minor attenuation of the acute response to exercise compared to placebo. Together, these data suggest modest benefits of dietary n3-PUFAs to muscle function in healthy older adults. Future studies may elucidate whether n3-PUFA supplementation improves the exercise response in elderly individuals with co-morbidities, such as chronic inflammatory disease or sarcopenia.
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Affiliation(s)
- Hawley E. Kunz
- Endocrine Research Unit, Division of Endocrinology, Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Kelly L. Michie
- Endocrine Research Unit, Division of Endocrinology, Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Kevin J. Gries
- Endocrine Research Unit, Division of Endocrinology, Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Physical Therapy, School of Health Professions, Concordia University of Wisconsin, Mequon, WI 53097, USA
| | - Xiaoyan Zhang
- Endocrine Research Unit, Division of Endocrinology, Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Geriatrics, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
| | - Zachary C. Ryan
- Endocrine Research Unit, Division of Endocrinology, Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Ian R. Lanza
- Endocrine Research Unit, Division of Endocrinology, Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Correspondence:
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Lima JEBF, Moreira NCS, Sakamoto-Hojo ET. Mechanisms underlying the pathophysiology of type 2 diabetes: From risk factors to oxidative stress, metabolic dysfunction, and hyperglycemia. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 874-875:503437. [PMID: 35151421 DOI: 10.1016/j.mrgentox.2021.503437] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/08/2021] [Accepted: 12/12/2021] [Indexed: 12/17/2022]
Abstract
Type 2 diabetes (T2D) is a complex multifactorial disease that emerges from the combination of genetic and environmental factors, and obesity, lifestyle, and aging are the most relevant risk factors. Hyperglycemia is the main metabolic feature of T2D as a consequence of insulin resistance and β-cell dysfunction. Among the cellular alterations induced by hyperglycemia, the overproduction of reactive oxygen species (ROS) and consequently oxidative stress, accompanied by a reduced antioxidant response and impaired DNA repair pathways, represent essential mechanisms underlying the pathophysiology of T2D and the development of late complications. Mitochondrial dysfunction, endoplasmic reticulum (ER) stress, and inflammation are also closely correlated with insulin resistance and β-cell dysfunction. This review focus on the mechanisms by which oxidative stress, mitochondrial dysfunction, ER stress, and inflammation are involved in the pathophysiology of T2D, highlighting the importance of the antioxidant response and DNA repair mechanisms counteracting the development of the disease. Moreover, we indicate evidence on how nutritional interventions effectively improve diabetes care. Additionally, we address key molecular characteristics and signaling pathways shared between T2D and Alzheimer's disease (AD), which might probably be implicated in the risk of T2D patients to develop AD.
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Affiliation(s)
- Jessica E B F Lima
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
| | - Natalia C S Moreira
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
| | - Elza T Sakamoto-Hojo
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo - USP, Ribeirão Preto, SP, Brazil; Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
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9
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Beneficial effects of eicosapentaenoic acid on the metabolic profile of obese female mice entails upregulation of HEPEs and increased abundance of enteric Akkermansia muciniphila. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159059. [PMID: 34619367 PMCID: PMC8627244 DOI: 10.1016/j.bbalip.2021.159059] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 08/30/2021] [Accepted: 09/24/2021] [Indexed: 01/03/2023]
Abstract
Eicosapentaenoic acid (EPA) ethyl esters are of interest given their clinical approval for lowering circulating triglycerides and cardiometabolic disease risk. EPA ethyl esters prevent metabolic complications driven by a high fat diet in male mice; however, their impact on female mice is less studied. Herein, we first investigated how EPA influences the metabolic profile of female C57BL/6J mice consuming a high fat diet. EPA lowered murine fat mass accumulation, potentially through increased biosynthesis of 8-hydroxyeicosapentaenoic acid (HEPE), as revealed by mass spectrometry and cell culture studies. EPA also reversed the effects of a high fat diet on circulating levels of insulin, glucose, and select inflammatory/metabolic markers. Next, we studied if the improved metabolic profile of obese mice consuming EPA was associated with a reduction in the abundance of key gut Gram-negative bacteria that contribute toward impaired glucose metabolism. Using fecal 16S-ribosomal RNA gene sequencing, we found EPA restructured the gut microbiota in a time-dependent manner but did not lower the levels of key Gram-negative bacteria. Interestingly, EPA robustly increased the abundance of the Gram-negative Akkermansia muciniphila, which controls glucose homeostasis. Finally, predictive functional profiling of microbial communities revealed EPA-mediated reversal of high fat diet-associated changes in a wide range of genes related to pathways such as Th-17 cell differentiation and PI3K-Akt signaling. Collectively, these results show that EPA ethyl esters prevent some of the deleterious effects of a high fat diet in female mice, which may be mediated mechanistically through 8-HEPE and the upregulation of intestinal Akkermansia muciniphila.
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Mastrototaro L, Roden M. Insulin resistance and insulin sensitizing agents. Metabolism 2021; 125:154892. [PMID: 34563556 DOI: 10.1016/j.metabol.2021.154892] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/08/2021] [Accepted: 09/20/2021] [Indexed: 02/06/2023]
Abstract
Insulin resistance is a common feature of obesity and type 2 diabetes, but novel approaches of diabetes subtyping (clustering) revealed variable degrees of insulin resistance in people with diabetes. Specifically, the severe insulin resistant diabetes (SIRD) subtype not only exhibits metabolic abnormalities, but also bears a higher risk for cardiovascular, renal and hepatic comorbidities. In humans, insulin resistance comprises dysfunctional adipose tissue, lipotoxic insulin signaling followed by glucotoxicity, oxidative stress and low-grade inflammation. Recent studies show that aside from metabolites (free fatty acids, amino acids) and signaling proteins (myokines, adipokines, hepatokines) also exosomes with their cargo (proteins, mRNA and microRNA) contribute to altered crosstalk between skeletal muscle, liver and adipose tissue during the development of insulin resistance. Reduction of fat mass mainly, but not exclusively, explains the success of lifestyle modification and bariatric surgery to improve insulin sensitivity. Moreover, some older antihyperglycemic drugs (metformin, thiazolidinediones), but also novel therapeutic concepts (new peroxisome proliferator-activated receptor agonists, incretin mimetics, sodium glucose cotransporter inhibitors, modulators of energy metabolism) can directly or indirectly reduce insulin resistance. This review summarizes molecular mechanisms underlying insulin resistance including the roles of exosomes and microRNAs, as well as strategies for the management of insulin resistance in humans.
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Affiliation(s)
- Lucia Mastrototaro
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine University Düsseldorf, Düsseldorf, Germany; German Center for Diabetes Research, Partner Düsseldorf, München-Neuherberg, Germany
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine University Düsseldorf, Düsseldorf, Germany; German Center for Diabetes Research, Partner Düsseldorf, München-Neuherberg, Germany; Department of Endocrinology and Diabetology, Medical Faculty and University Hospital, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany.
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Anti-inflammatory effect of fish oil in human adipose tissue. Int J Obes (Lond) 2021; 45:2288. [PMID: 34230578 DOI: 10.1038/s41366-021-00889-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/26/2021] [Accepted: 06/22/2021] [Indexed: 02/06/2023]
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Hernandez JD, Li T, De Filippis E. ω-3PUFA supplementation ameliorates adipose tissue inflammation and insulin-stimulated glucose disposal in subjects with obesity: a potential role for apolipoprotein E. Int J Obes (Lond) 2021; 45:2286-2287. [PMID: 34140628 PMCID: PMC8458233 DOI: 10.1038/s41366-021-00882-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 05/29/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023]
Affiliation(s)
- James D. Hernandez
- Division of Endocrinology, Diabetes and Metabolism, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - Ting Li
- Division of Endocrinology, Diabetes and Metabolism, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - Eleanna De Filippis
- Division of Endocrinology, Diabetes and Metabolism, Mayo Clinic Arizona, Scottsdale, AZ, USA,Correspondence and requests for materials should be addressed to E.D.F.
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Isaac R, Reis FCG, Ying W, Olefsky JM. Exosomes as mediators of intercellular crosstalk in metabolism. Cell Metab 2021; 33:1744-1762. [PMID: 34496230 PMCID: PMC8428804 DOI: 10.1016/j.cmet.2021.08.006] [Citation(s) in RCA: 269] [Impact Index Per Article: 89.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/07/2021] [Accepted: 08/11/2021] [Indexed: 02/08/2023]
Abstract
Exosomes are nanoparticles secreted by all cell types and are a large component of the broader class of nanoparticles termed extracellular vesicles (EVs). Once secreted, exosomes gain access to the interstitial space and ultimately the circulation, where they exert local paracrine or distal systemic effects. Because of this, exosomes are important components of an intercellular and intraorgan communication system capable of carrying biologic signals from one cell type or tissue to another. The exosomal cargo consists of proteins, lipids, miRNAs, and other RNA species, and many of the biologic effects of exosomes have been attributed to miRNAs. Exosomal miRNAs have also been used as disease biomarkers. The field of exosome biology and metabolism is rapidly expanding, with new discoveries and reports appearing on a regular basis, and it is possible that potential therapeutic approaches for the use of exosomes or miRNAs in metabolic diseases will be initiated in the near future.
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Affiliation(s)
- Roi Isaac
- Division of Endocrinology & Metabolism, Department of Medicine, University of California, San Diego, San Diego, CA, USA
| | - Felipe Castellani Gomes Reis
- Division of Endocrinology & Metabolism, Department of Medicine, University of California, San Diego, San Diego, CA, USA
| | - Wei Ying
- Division of Endocrinology & Metabolism, Department of Medicine, University of California, San Diego, San Diego, CA, USA
| | - Jerrold M Olefsky
- Division of Endocrinology & Metabolism, Department of Medicine, University of California, San Diego, San Diego, CA, USA.
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